1. Amsterdam UMC, University of AmsterdamHeart Center, Academic Medical Center Amsterdam The Netherlands
2. The Department of CardiologyOnze Lieve Vrouwe Gasthuis Amsterdam The Netherlands
3. The Department of CardiologyMedical Center Leeuwarden Leeuwarden The Netherlands
4. The Department of CardiologyTergooi Hospital Blaricum The Netherlands
5. The Department of CardiologyAlbert Schweitzer Hospital Dordrecht The Netherlands
6. Thoraxcenter, Erasmus MC Rotterdam The Netherlands
7. NHLIImperial College London London United Kingdom